Doing some research the past 30 days, I've come across several folks (posts on various forums) moving from 160 to 170 on the Levo and comparable bikes. In that search I might have come across one person who tried a 180, and yet I'm just hoping my jump to 170 will be not too drastic to upset handling. My only reason is my 218lb rider weight fully kitted up, and thinking the extra 10mm might allow me to not have to "air up" as much trying to keep it plush at the top of the stroke for regular trail riding. The only complaints I saw going too long on front is "upsetting balance front to rear" and "having the front end feeling like it will lift when climbing uphills", if you do a lot of uphill stuff. Lastly, my local tech indicating if I don't like the 170, simply switching the air shaft size back to 160 within minimal effort. Not sure it helps, but will be watching to see who chimes in with a 180 setup on a Levo. Best of luck.